545RFE Upgrades
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545RFE Upgrades
I own a 2004 Durango with the 5.7. Backed by the 545RFE. Looking to seeif any has used the Sonnax Line Booster and/or the Transgo "ReprogrammerKit" P/N 45RFE-HD2. I have read up on what the each do. My question is hasanybody used them and used them both on the same transmission?